Home / 19,660.15-27,150.29-16,811.08

Finding the Fourth Proportional to 19,660.15, 27,150.29 and 16,811.08

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Solution

The fourth proportional to 19,660.15, 27,150.29 and 16,811.08 is: 23,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.15 : 27,150.29 = 16,811.08 : x
  2. Step 2: Convert to fraction form
    19,660.15/27,150.29 = 16,811.08/x
  3. Step 3: Cross multiply
    19,660.15x = 27,150.29 × 16,811.08
  4. Step 4: Simplify right side
    19,660.15x = 456,425,608.32
  5. Step 5: Solve for x
    x = 456,425,608.32/19,660.15
  6. Step 6: Final answer
    x = 23,215.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.